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HFI1: use embedded kmalloc cache for req->tids (fixes AllReduce hang)

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Balazs Gerofi
2017-08-24 21:05:58 +09:00
parent 5b5191ef64
commit 70238982c2
1 changed files with 3 additions and 5 deletions
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8
kernel/user_sdma.c
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@@ -1022,9 +1022,8 @@ int hfi1_user_sdma_process_request(void *private_data, struct iovec *iovec,
ret = -EINVAL; ret = -EINVAL;
goto free_req; goto free_req;
} }
//req->tids = kmalloc_cache_alloc(&tids_cache, req->tids = kmalloc_cache_alloc(&tids_cache,
// sizeof(*req->tids) * MAX_TID_PAIR_ENTRIES); sizeof(*req->tids) * MAX_TID_PAIR_ENTRIES);
req->tids = kcalloc(ntids, sizeof(*req->tids), GFP_KERNEL);
if (!req->tids) { if (!req->tids) {
ret = -ENOMEM; ret = -ENOMEM;
goto free_req; goto free_req;
@@ -2068,8 +2067,7 @@ static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
#endif /* __HFI1_ORIG__ */ #endif /* __HFI1_ORIG__ */
} }
} }
//kmalloc_cache_free(&tids_cache, req->tids); kmalloc_cache_free(req->tids);
kfree(req->tids);
clear_bit(req->info.comp_idx, req->pq->req_in_use); clear_bit(req->info.comp_idx, req->pq->req_in_use);
hfi1_cdbg(AIOWRITE, "-"); hfi1_cdbg(AIOWRITE, "-");
} }